<http://schema.org/headline>
"\u4E60\u8FD1\u5E73\u5373\u5C06\u9762\u4E34\u7684\u7ECF\u6D4E\u56F0\u5C40"^^<http://www.w3.org/2001/XMLSchema#string>
<http://cn.wsj.com/gb/20121113/bch111509.asp?source=UpFeature>